发明名称 Frame alignment and time domain equalization for communications systems using multicarrier modulation
摘要 A discrete multitone (DMT) receiver has a time domain equalizer (TDEQ) which is trained during initialization using an estimated channel impulse response (CIR). To eliminate wrap-around of the estimated CIR relative to the DMT frame alignment, and to remove leading zeroes, the estimated CIR is circularly advanced relative to the frame alignment for training the TDEQ. In subsequent communications of DMT symbols via the channel and the TDEQ, the equalized samples of the received DMT symbols are buffered to compensate, in a frame alignment of the received DMT symbols, for the advance of the estimated CIR in the initialization process and for a delay in the TDEQ.
申请公布号 US6456654(B1) 申请公布日期 2002.09.24
申请号 US19980218054 申请日期 1998.12.22
申请人 NORTEL NETWORKS LIMITED 发明人 GINESI ALBERTO;BOURGET CHRISTIAN;PAKRAVAN MOHAMMAD
分类号 H04L25/02;H04L25/03;H04L27/01;H04L27/26;(IPC1-7):H03H7/30 主分类号 H04L25/02
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